- Liver function tests: If Alanine aminotransferase (ALT) >=8x upper limit of normal (ULN); OR If ALT >5-8x ULN and bilirubin >2<=3 ULN or bilirubin >3x ULN (Include only if bilirubin <1.5xULN); OR If ALT <=5xULN and Bilirubin >3xULN (Include only if ALT <=3xULN and Bilirubin >2 <=3xULN)